/* ==========================================================================
   Sedenius Energy — Stylesheet
   Farben und Schriften nach Markenhandbuch. Mobile first.
   ========================================================================== */

:root {
  /* Markenfarben, direkt aus dem Logopaket */
  --nacht:   #0B1B2B;
  --nacht-8: #122232;
  --nacht-7: #1A2A3B;
  --nacht-9: #051423;
  --linie:   #303F4F;
  --blau:    #1965B0;
  --blau-4:  #5FA2ED;
  --gruen:   #7DC242;
  --stahl:   #454E58;
  --stahl-4: #889099;
  --grau:    #A8B2BC;
  --beton-2: #C9CED4;
  --beton-1: #E4E8EC;
  --beton:   #F3F5F8;
  --weiss:   #FFFFFF;
  --alarm:   #E64343;

  --h: 'Source Sans 3', 'Source Sans Pro', 'Segoe UI', system-ui, sans-serif;
  --t: 'IBM Plex Sans', 'Segoe UI', system-ui, sans-serif;
  --m: 'IBM Plex Mono', ui-monospace, 'SF Mono', Menlo, monospace;

  --gutter: 20px;
  --maxw: 1240px;
}
@media (min-width: 760px)  { :root { --gutter: 40px; } }
@media (min-width: 1100px) { :root { --gutter: 64px; } }

*, *::before, *::after { box-sizing: border-box; }

html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; }
@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } }

body {
  margin: 0;
  background: var(--beton);
  color: var(--nacht);
  font-family: var(--t);
  font-size: 17px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

img, svg { max-width: 100%; height: auto; display: block; }

a { color: var(--blau); text-decoration: underline; text-underline-offset: 2px; }
a:hover { color: var(--nacht); }
:focus-visible { outline: 3px solid var(--gruen); outline-offset: 3px; }

h1, h2, h3 { font-family: var(--h); font-weight: 700; letter-spacing: -0.02em; margin: 0; text-wrap: pretty; }
h1 { font-size: clamp(2.4rem, 7vw, 4.4rem); line-height: 1.04; }
h2 { font-size: clamp(1.8rem, 4.2vw, 2.5rem); line-height: 1.14; }
h3 { font-size: 1.25rem; line-height: 1.3; }
p  { margin: 0; }

.skip {
  position: absolute; left: -9999px; top: 0; z-index: 10000;
  background: var(--gruen); color: var(--nacht); padding: 12px 20px; font-weight: 600;
}
.skip:focus { left: 0; }

/* --- Grundbausteine ------------------------------------------------------ */
.wrap { max-width: var(--maxw); margin-inline: auto; padding-inline: var(--gutter); }
.sec  { padding-block: clamp(52px, 8vw, 88px); }
.sec--dark  { background: var(--nacht);   color: var(--beton-1); }
.sec--panel { background: var(--nacht-8); color: var(--beton-1); }
.sec--tint  { background: var(--beton-1); }
.sec--blau  { background: var(--blau);    color: var(--weiss); }

.eyebrow {
  font-family: var(--m); font-size: .75rem; letter-spacing: .2em;
  text-transform: uppercase; color: var(--blau); margin: 0 0 12px;
}
.hero .eyebrow, .sec--dark .eyebrow, .sec--panel .eyebrow { color: var(--gruen); }
.lead { font-size: clamp(1.05rem, 2.1vw, 1.25rem); line-height: 1.6; color: var(--stahl); }
.hero .lead, .sec--dark .lead, .sec--panel .lead { color: var(--grau); }
.muted { color: var(--stahl-4); }
.mono  { font-family: var(--m); }

.btn {
  display: inline-block; font-family: var(--t); font-size: 1.0625rem; font-weight: 600;
  padding: 15px 28px; min-height: 48px; border: 2px solid transparent;
  text-decoration: none; cursor: pointer; text-align: center;
}
.btn--primary { background: var(--gruen); color: var(--nacht); }
.btn--primary:hover { background: #8FD152; color: var(--nacht); }
.btn--ghost { background: transparent; color: var(--beton-1); border-color: var(--linie); }
.btn--ghost:hover { border-color: var(--gruen); color: var(--weiss); }

.grid { display: grid; gap: 24px; }
@media (min-width: 720px)  { .grid--2 { grid-template-columns: repeat(2, minmax(0,1fr)); } }
@media (min-width: 720px)  { .grid--3 { grid-template-columns: repeat(2, minmax(0,1fr)); } }
@media (min-width: 1040px) { .grid--3 { grid-template-columns: repeat(3, minmax(0,1fr)); } }
@media (min-width: 720px)  { .grid--4 { grid-template-columns: repeat(2, minmax(0,1fr)); } }
@media (min-width: 1040px) { .grid--4 { grid-template-columns: repeat(4, minmax(0,1fr)); } }

/* --- Kopfzeile ----------------------------------------------------------- */
.site-head { background: var(--nacht); border-bottom: 1px solid var(--nacht-7); }
.site-head__in { display: flex; align-items: center; justify-content: space-between; gap: 20px; padding-block: 18px; }
.site-head__logo img { height: 34px; width: auto; }
.nav { display: none; }
.nav a { color: var(--beton-2); text-decoration: none; font-size: .95rem; }
.nav a:hover { color: var(--gruen); }
@media (min-width: 1040px) {
  .nav { display: flex; align-items: center; gap: 26px; }
  .nav .btn { padding: 11px 20px; min-height: 0; font-size: .95rem; }
}
.nav-toggle {
  background: none; border: 1px solid var(--linie); color: var(--beton-1);
  padding: 10px 14px; font: inherit; font-size: .9rem; cursor: pointer;
}
@media (min-width: 1040px) { .nav-toggle { display: none; } }
.nav-mobile { background: var(--nacht-8); border-bottom: 1px solid var(--nacht-7); }
.nav-mobile[hidden] { display: none; }
.nav-mobile ul { list-style: none; margin: 0; padding: 8px 0 20px; }
.nav-mobile a { display: block; padding: 14px var(--gutter); color: var(--beton-1); text-decoration: none; }
.nav-mobile a:hover { background: var(--nacht-7); color: var(--gruen); }

/* --- Hero ---------------------------------------------------------------- */
.hero { background: var(--nacht); color: var(--beton-1); }
.hero__in { display: grid; gap: 40px; padding-block: clamp(48px, 7vw, 88px); }
@media (min-width: 1040px) { .hero__in { grid-template-columns: 1.05fr .95fr; align-items: center; gap: 56px; } }
.hero h1 { color: var(--weiss); }
.hero__sub { margin-top: 20px; max-width: 34em; }
.hero__cta { display: flex; flex-wrap: wrap; gap: 14px; margin-top: 28px; }
.hero__facts {
  display: grid; grid-template-columns: repeat(2, minmax(0,1fr)); gap: 22px 32px;
  margin-top: 34px; padding-top: 26px; border-top: 1px solid var(--nacht-7);
}
@media (min-width: 620px) { .hero__facts { grid-template-columns: repeat(4, minmax(0,1fr)); } }
.fact__n { font-family: var(--h); font-weight: 700; font-size: 1.9rem; color: var(--weiss); line-height: 1; }
.fact__l { font-size: .85rem; color: var(--grau); margin-top: 4px; }
.hero__art { background: var(--nacht-8); aspect-ratio: 4 / 3; overflow: hidden; }
.hero__art svg { width: 100%; height: 100%; }

/* --- Karten -------------------------------------------------------------- */
.card { background: var(--weiss); padding: 28px; border-top: 4px solid var(--blau); display: flex; flex-direction: column; gap: 12px; }
.card h3 { font-size: 1.35rem; }
.card p { color: var(--stahl); font-size: 1rem; }
.card__icon { color: var(--blau); }

.prod { background: var(--nacht); color: var(--beton-1); display: flex; flex-direction: column; }
.prod__art { background: var(--nacht-8); aspect-ratio: 16 / 7; overflow: hidden; }
.prod__art svg, .prod__art img { width: 100%; height: 100%; display: block; }
.prod__art img { object-fit: cover; }
.prod__body { padding: 28px; display: flex; flex-direction: column; gap: 12px; flex: 1; }
.prod__body h3 { color: var(--weiss); font-size: 1.6rem; }
.prod__body p { color: var(--grau); font-size: 1rem; }
.prod__spec { font-family: var(--m); font-size: .82rem; line-height: 1.8; color: var(--beton-2);
              border-top: 1px solid var(--nacht-7); padding-top: 14px; }
.prod__foot { margin-top: auto; padding-top: 16px; display: flex; justify-content: space-between;
              align-items: baseline; gap: 12px; flex-wrap: wrap; }
.prod__foot a { font-family: var(--m); font-size: .78rem; letter-spacing: .12em;
                text-transform: uppercase; color: var(--gruen); text-decoration: none; }
.prod__foot a:hover { color: var(--weiss); }

/* --- Listenabschnitt (Einsatzfelder) ------------------------------------- */
.rows { margin-top: 28px; }
.row { display: grid; gap: 4px 28px; padding-block: 20px; border-top: 1px solid var(--nacht-7); }
.row:last-child { border-bottom: 1px solid var(--nacht-7); }
@media (min-width: 860px) { .row { grid-template-columns: 44px 320px 1fr; align-items: baseline; } }
.row__n { font-family: var(--m); font-size: .8rem; color: var(--stahl-4); }
.row__t { font-family: var(--h); font-weight: 600; font-size: 1.2rem; color: var(--weiss); }
.row__d { color: var(--grau); font-size: 1rem; }

/* --- Ablauf -------------------------------------------------------------- */
.step { border-top: 3px solid var(--beton-2); padding-top: 18px; display: flex; flex-direction: column; gap: 8px; }
.step--now { border-top-color: var(--blau); }
.step__k { font-family: var(--m); font-size: .78rem; letter-spacing: .14em; color: var(--stahl-4); }
.step--now .step__k { color: var(--blau); }
.step p { color: var(--stahl); font-size: .98rem; }

/* --- Team ---------------------------------------------------------------- */
.person { background: var(--weiss); }
.person__ph { aspect-ratio: 4 / 5; overflow: hidden; background: var(--beton-1); display: grid; place-items: center;
              font-family: var(--m); font-size: .72rem; letter-spacing: .16em;
              text-transform: uppercase; color: var(--stahl-4); }
.person__body { padding: 22px 24px; display: flex; flex-direction: column; gap: 6px; }
.person__role { font-family: var(--m); font-size: .75rem; letter-spacing: .12em;
                text-transform: uppercase; color: var(--blau); }
.person__body p { color: var(--stahl); font-size: .98rem; }
.person__ph img { width: 100%; height: 100%; object-fit: cover; object-position: center top; display: block; }
.person__li { display: inline-flex; align-items: center; gap: 8px; margin-top: 6px; align-self: flex-start;
              font-size: .92rem; font-weight: 500; color: var(--nacht); text-decoration: none; }
.person__li:hover { color: #0A66C2; }
.person__li svg { flex: none; }

/* --- Steckbriefe --------------------------------------------------------- */
.proof { background: var(--nacht-8); padding: 26px; border-left: 3px solid var(--linie);
         display: flex; flex-direction: column; gap: 12px; }
.proof--lead { border-left-color: var(--gruen); }
.proof__k { font-family: var(--m); font-size: .72rem; letter-spacing: .16em;
            text-transform: uppercase; color: var(--stahl-4); }
.proof--lead .proof__k { color: var(--gruen); }
.proof h3 { color: var(--weiss); font-size: 1.15rem; font-weight: 600; }
.proof p { color: var(--grau); font-size: .95rem; }
.proof b { color: var(--beton-2); font-weight: 500; }

/* --- Technik-Spalten ----------------------------------------------------- */
.tech { border-top: 1px solid var(--linie); padding-top: 18px; display: flex; flex-direction: column; gap: 10px; }
.tech h3 { color: var(--gruen); font-size: 1.1rem; font-weight: 600; }
.tech ul { list-style: none; margin: 0; padding: 0; font-family: var(--m);
           font-size: .84rem; line-height: 1.9; color: var(--grau); }

/* --- Formular ------------------------------------------------------------ */
.form { display: grid; gap: 18px; }
@media (min-width: 720px) { .form__two { display: grid; grid-template-columns: 1fr 1fr; gap: 18px; } }
.field { display: flex; flex-direction: column; gap: 7px; }
.field label { font-size: .92rem; font-weight: 500; color: var(--nacht); }
.field .hint { font-size: .82rem; color: var(--stahl-4); }
.field input, .field textarea, .field select {
  font: inherit; font-size: 1rem; padding: 13px 14px; min-height: 48px;
  border: 1px solid var(--beton-2); background: var(--weiss); color: var(--nacht);
  border-radius: 0; width: 100%;
}
.field textarea { min-height: 150px; resize: vertical; }
.field input:focus, .field textarea:focus, .field select:focus {
  outline: 3px solid var(--gruen); outline-offset: 1px; border-color: var(--blau);
}
.field--check { flex-direction: row; align-items: flex-start; gap: 12px; }
.field--check input { width: 22px; height: 22px; min-height: 0; margin-top: 2px; flex: none; }
.field--check label { font-size: .92rem; font-weight: 400; color: var(--stahl); line-height: 1.55; }
.hp { position: absolute; left: -9999px; width: 1px; height: 1px; overflow: hidden; }

/* --- Fußzeile ------------------------------------------------------------ */
.site-foot { background: var(--nacht-9); color: var(--grau); padding-block: 48px 28px; }
.site-foot__top { display: grid; gap: 34px; }
@media (min-width: 860px) { .site-foot__top { grid-template-columns: 320px 1fr; gap: 56px; } }
.site-foot__cols { display: grid; gap: 28px; grid-template-columns: repeat(2, minmax(0,1fr)); }
@media (min-width: 620px) { .site-foot__cols { grid-template-columns: repeat(3, minmax(0,1fr)); } }
.site-foot h4 { font-family: var(--m); font-size: .72rem; letter-spacing: .16em;
                text-transform: uppercase; color: var(--stahl-4); margin: 0 0 10px; font-weight: 400; }
.site-foot ul { list-style: none; margin: 0; padding: 0; display: grid; gap: 9px; }
.site-foot a { color: var(--grau); text-decoration: none; font-size: .95rem; }
.site-foot a:hover { color: var(--gruen); }
.site-foot__logo { width: 190px; margin-bottom: 14px; }
.site-foot__claim { font-family: var(--h); font-weight: 600; font-size: 1.05rem; color: var(--weiss); margin: 0 0 12px; }
.site-foot__legal { font-size: .9rem; line-height: 1.65; color: var(--stahl-4); }
.site-foot__bar { border-top: 1px solid var(--nacht-7); margin-top: 34px; padding-top: 18px;
                  display: flex; flex-wrap: wrap; gap: 14px 26px; justify-content: space-between;
                  align-items: center; font-size: .85rem; color: var(--stahl-4); }
.site-foot__bar .mono { font-size: .78rem; }

/* --- Inhaltsseiten (Datenschutz, Impressum) ------------------------------ */
.prose { max-width: 70ch; }
.prose h2 { margin-top: 44px; margin-bottom: 12px; font-size: 1.5rem; }
.prose h3 { margin-top: 26px; margin-bottom: 8px; }
.prose p, .prose ul, .prose ol { margin-top: 14px; color: var(--stahl); }
.prose ul, .prose ol { padding-left: 22px; }
.prose li { margin-top: 7px; }
.prose dl { display: grid; gap: 4px 0; margin-top: 14px; }
.prose dt { font-family: var(--m); font-size: .75rem; letter-spacing: .16em;
            text-transform: uppercase; color: var(--blau); margin-top: 16px; }
.prose dd { margin: 0; color: var(--nacht); }
.page-head { background: var(--nacht); color: var(--beton-1); padding-block: clamp(44px, 6vw, 72px); }
.page-head h1 { color: var(--weiss); font-size: clamp(2rem, 5vw, 3rem); }

/* --- Einwilligungsbanner -------------------------------------------------- */
.consent[hidden] { display: none !important; }
.consent {
  position: fixed; inset: auto 0 0 0; z-index: 9999;
  background: var(--nacht); border-top: 3px solid var(--gruen); color: var(--beton-1);
  box-shadow: 0 -8px 40px rgba(0,0,0,.35);
}
.consent__in { max-width: 1100px; margin-inline: auto; padding: 22px var(--gutter);
               display: flex; flex-wrap: wrap; gap: 22px; align-items: flex-start; }
.consent__txt { flex: 1 1 380px; min-width: 240px; }
.consent__txt strong { display: block; font-family: var(--h); font-size: 1.15rem; color: var(--weiss); margin-bottom: 7px; }
.consent__txt p { font-size: .95rem; color: var(--grau); }
.consent__txt a { color: var(--gruen); }
.consent__act { display: flex; gap: 12px; flex-wrap: wrap; }
.consent__act .btn { min-width: 150px; }
.btn--neutral { background: var(--beton-1); color: var(--nacht); }
.btn--neutral:hover { background: var(--weiss); color: var(--nacht); }
.consent__meta { flex-basis: 100%; display: flex; flex-wrap: wrap; gap: 18px;
                 font-family: var(--m); font-size: .72rem; color: var(--stahl-4); }
.consent__meta a { color: var(--stahl-4); }
@media (max-width: 620px) { .consent__act { width: 100%; } .consent__act .btn { flex: 1 1 130px; min-width: 0; } }

.consent-status { font-size: .85rem; }
.consent-status button { background: none; border: 0; padding: 0; font: inherit;
                         color: inherit; text-decoration: underline; cursor: pointer; }

/* --- Referenzen, Formular-Hinweis, B2B ---------------------------------- */
.refs { display: flex; flex-wrap: wrap; align-items: baseline; gap: 10px 28px; margin-top: 26px;
        padding-top: 20px; border-top: 1px solid var(--linie); }
.refs__k { font-family: var(--m); font-size: .72rem; letter-spacing: .16em; text-transform: uppercase; color: var(--stahl-4); flex-basis: 100%; }
.refs__n { font-family: var(--h); font-weight: 600; font-size: 1.25rem; color: var(--weiss); }
.form__note { margin-top: 12px; font-size: .85rem; color: var(--stahl); }
.site-foot__b2b { margin-top: 12px; font-size: .85rem; line-height: 1.5; color: var(--stahl-4); max-width: 30em; }

/* --- Produkt-Unterseite ------------------------------------------------- */
.hero__art--photo { aspect-ratio: auto; background: none; }
.hero__art--photo img { width: 100%; height: auto; display: block; }
.spec-list { list-style: none; padding: 0; margin: 18px 0 0; display: grid; gap: 10px; }
.spec-list li { padding-left: 26px; position: relative; color: var(--stahl); }
.spec-list li::before { content: ""; position: absolute; left: 0; top: .5em; width: 10px; height: 10px; background: var(--gruen); }
.proof-img { margin: 0; position: relative; background: var(--nacht-8); overflow: hidden; }
.proof-img img { width: 100%; height: 100%; object-fit: cover; display: block; }
.proof-img figcaption { position: absolute; right: 10px; bottom: 8px; font-family: var(--m); font-size: .68rem;
                        letter-spacing: .12em; text-transform: uppercase; color: var(--stahl-4); }
.proof-img--light { background: #fff; display: flex; align-items: center; padding: 12px; }
.proof-img--light img { height: auto; object-fit: contain; }
.proof-img--light figcaption { color: #6B7785; }

/* --- Hero-Karussell ------------------------------------------------------ */
.hero-car { position: relative; }
.hero-car__slide { position: absolute; inset: 0; margin: 0; opacity: 0; transition: opacity .9s ease; }
.hero-car__slide.is-active { opacity: 1; }
.hero-car__slide svg { width: 100%; height: 100%; display: block; }
.hero-car__slide figcaption { position: absolute; left: 14px; top: 12px; padding: 5px 9px;
  font-family: var(--m); font-size: .7rem; letter-spacing: .14em; text-transform: uppercase;
  color: var(--beton-2); background: rgba(11, 27, 43, .78); }
.hero-car__dots { position: absolute; right: 14px; bottom: 19px; display: flex; gap: 6px; }
.hero-car__dots button { width: 22px; height: 4px; padding: 0; border: 0; border-radius: 2px;
  background: rgba(201, 206, 212, .35); cursor: pointer; transition: background .3s, width .3s; }
.hero-car__dots button[aria-current="true"] { background: var(--gruen); width: 34px; }
.hero-car__nav { position: absolute; top: 50%; transform: translateY(-50%); width: 40px; height: 40px;
  display: grid; place-items: center; padding: 0; border: 1px solid rgba(201, 206, 212, .25);
  background: rgba(11, 27, 43, .72); color: var(--beton-1); cursor: pointer; transition: background .2s, color .2s; }
.hero-car__nav--prev { left: 10px; }
.hero-car__nav--next { right: 10px; }
.hero-car__nav:hover { background: var(--gruen); color: var(--nacht); border-color: var(--gruen); }
.hero-car__nav:focus-visible { outline: 2px solid var(--weiss); outline-offset: 2px; }
.hero-car__dots button:focus-visible { outline: 2px solid var(--weiss); outline-offset: 2px; }
@media (prefers-reduced-motion: reduce) { .hero-car__slide { transition: none; } }

/* --- Für wen / FAQ / Hinweise -------------------------------------------- */
.card--link { display: block; color: inherit; text-decoration: none; transition: border-color .2s, transform .2s; }
.card--link:hover { border-color: var(--gruen); transform: translateY(-2px); }
.card__more { display: inline-block; margin-top: 14px; font-family: var(--m); font-size: .78rem; letter-spacing: .12em;
              text-transform: uppercase; color: var(--blau); }
.rows__note { margin-top: 22px; max-width: 56em; font-size: .95rem; line-height: 1.6; color: var(--grau); }
.faq { margin-top: 26px; border-top: 1px solid var(--beton-2); }
.faq__item { border-bottom: 1px solid var(--beton-2); }
.faq__item summary { cursor: pointer; list-style: none; padding: 18px 44px 18px 0; position: relative;
                     font-family: var(--h); font-weight: 600; font-size: 1.1rem; color: var(--nacht); }
.faq__item summary::-webkit-details-marker { display: none; }
.faq__item summary::after { content: "+"; position: absolute; right: 4px; top: 14px; font-size: 1.5rem; line-height: 1;
                            color: var(--gruen); transition: transform .2s; }
.faq__item[open] summary::after { transform: rotate(45deg); }
.faq__item p { margin: 0 0 20px; max-width: 60em; color: var(--stahl); line-height: 1.6; }
.prod__foot a + a { margin-left: 18px; }

/* Einwilligung: beide Schaltflächen gleichwertig */
#consent-reject.btn--primary { background: var(--beton-1); color: var(--nacht); }
#consent-reject.btn--primary:hover { background: var(--weiss); }
.consent:focus { outline: none; }

/* --- Navigation: Untermenü Produkte --------------------------------------- */
.nav__group { position: relative; display: inline-block; }
.nav__group > a::after { content: ""; display: inline-block; margin-left: 6px; width: 6px; height: 6px;
  border-right: 1.5px solid currentColor; border-bottom: 1.5px solid currentColor; transform: translateY(-3px) rotate(45deg); }
.nav__menu { position: absolute; left: -14px; top: 100%; min-width: 220px; padding: 8px 0; margin-top: 10px;
  background: var(--nacht-8); border: 1px solid var(--nacht-7); box-shadow: 0 10px 30px rgba(0,0,0,.35);
  opacity: 0; visibility: hidden; transform: translateY(-4px); transition: opacity .15s, transform .15s, visibility .15s; z-index: 50; }
.nav__menu::before { content: ""; position: absolute; left: 0; right: 0; top: -12px; height: 12px; }
.nav__group:hover .nav__menu, .nav__group:focus-within .nav__menu { opacity: 1; visibility: visible; transform: translateY(0); }
.nav__menu a { display: block; padding: 10px 16px; font-size: .92rem; color: var(--beton-1); white-space: nowrap; }
.nav__menu a:hover, .nav__menu a[aria-current="page"] { background: var(--nacht-7); color: var(--gruen); }
.nav-mobile__sub { list-style: none; margin: 0; padding: 0 0 6px; }
.nav-mobile__sub a { padding-left: calc(var(--gutter) + 22px); font-size: .95rem; color: var(--grau); }